How many faces does the polyhedron have? 3 5 6 9

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.

An average person in the united states throws away 4.5 × 10² g of trash per day. in 2013, there were about    3.2×1063.2×106 people in the u.s.